index," royal baby watch is going into overdrive. Today is princess kate's due date according to many sources. And abc's bianna golodryga is in london with more on the final frenzy of bridal showers and betting over baby names that is happening right now. &#9834; Reporter: The countdown is on. And all of london is abuzz with excitement. Any day now the city will welcome a future monarch. It's something to look forward to. You know? Truly exciting to have a new baby on the scene. And hoping it's a girl. Pint and cheers for the little baby. Reporter: It's not just londoners getting excited. On the other side of the atlantic, the canadian government has plans to cast a pink or blue light on niagara falls when the baby's gender is announced. The keeper of the falls may be in for a wait. Prince william confirmed he will play in a polo match about an hour's drive from london this sunday. Fueling speculation the baby won't arrive until at least next week. That's not stopping people from placing bets on the royal baby's birth date and on its name, at william hill, a prominent british betting establishment. The prominent girl names are alexandra, charlotte and victoria. As for boys' names, the top contender is none other than george. We were wondering at "good morning america" back in new york, if that has anything to do with the fact our anchor is named george. We took that into account, obviously. Reporter: I decided to play a bet of my own. I was leaning towards alexandra. But something tells me the name will be bianna. Princess bianna has a nice bring ring, doesn't it? That's 5,000-1. Thank you very much. Reporter: The winning name. For "good morning america," bianna golodryga, abc news, london.

This transcript has been automatically generated and may not be 100% accurate.

Royal Baby Highlights Differences Between British, US Births

Universal health care and natural childbirth are just two of many areas where two countries differ.

Hospital Gets Security Sweep for Royal Baby

Prince William and Kate Middleton prepare as duchess enters final phase of pregnancy.

{"id":19637106,"title":"Many Claiming Today Is the Day for Royal Baby","duration":"1:58","description":"Officials and baby-watchers in London anxiously await new heir to the British throne.","section":"GMA","mediaType":"Default"}